SB2025040234 - Use-after-free in Linux kernel cdx driver
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040234
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2025-21915)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the driver_override_show() function in drivers/cdx/cdx.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0439d541aa8d3444ad41c39e39eb71acb57acde3
- https://git.kernel.org/stable/c/8473135f89c0949436a22adb05b8cece2fb3da91
- https://git.kernel.org/stable/c/91d44c1afc61a2fec37a9c7a3485368309391e0b
- https://git.kernel.org/stable/c/d7b339bbc887bcfc1a5b620bfc70c6fbb8f733bf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83